In a quiet hotel room in Denmark, British Samuel is sweating bricks - it's the day of his wedding and his anxiety is spinning out of control. Luckily for Sam, he's got his best man and closest friend Peter by his side, ready to calm his nerves. But once they arrive at the pristine country church, Sam's behavior grown increasingly erratic as they come across Laura, Ida's eerily odd sister, as well as the surreal aloof priest presiding over the wedding. And when Sam loses a small, yet crucial slip of paper, his sanity gets lost along with it - putting his and Peter's friendship to its greatest test yet...